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Nexperia USA Inc. 74HCT2G125DP,125
- Part No.:
- 74HCT2G125DP,125
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
74HCT2G125DP,125.pdf
- Description:
- IC BUF NON-INVERT 5.5V 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,837
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Product details
Overview
74HCT2G125DP,125 from Nexperia is a dual 3-state buffer/line driver with TTL-compatible inputs and CMOS outputs, operating from 4.5 V to 5.5 V supply, delivering propagation delay as low as 12 ns (VCC = 5.0 V, CL = 15 pF), and rated for -40 °C to +125 °C ambient temperature - used in bidirectional bus interfacing and level translation between legacy TTL logic and modern CMOS systems.
For engineers reviewing the 74HCT2G125DP,125 datasheet, 74HCT2G125DP,125 pinout, 74HCT2G125DP,125 application, or 74HCT2G125DP,125 equivalent, key selection criteria include output enable timing (enable/disable < 38 ns), high-impedance leakage (< ±10 μA), input clamp diode support for overvoltage-tolerant interfacing, and TSSOP8 package compatibility with high-density PCB layouts.
Technical Context
This device implements two independent non-inverting buffers, each with active-low 3-state output control (1OE, 2OE). Each channel features TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) and rail-to-rail CMOS output drive capability up to ±6 mA.
Its functional behavior follows strict truth table logic: when nOE = LOW, nY mirrors nA; when nOE = HIGH, nY enters high-impedance state. Input clamp diodes allow safe interface to signals exceeding VCC when used with current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and mixed-voltage industrial systems. |
| Propagation Delay | 12 ns (typ, VCC = 5.0 V, CL = 15 pF) - enables reliable operation in sub-25 MHz digital buses. |
| Output Drive | ±6.0 mA (VOH/VOL @ VCC = 4.5 V) - sufficient to drive 50 pF loads with < 0.33 V VOL and > 3.7 V VOH. |
| Enable/Disable Time | 35 ns / 31 ns (max, VCC = 4.5 V) - supports fast bus arbitration and dynamic line sharing. |
| Input Leakage | ±1.0 μA (max, VI = GND or VCC) - minimizes static power draw and signal integrity impact in high-impedance nodes. |
| Operating Temp | -40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor control environments. |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - meets JEDEC JS-001/JS-002 Class C3 for robust handling in automated assembly. |
Pinout & Package
TSSOP8 plastic thin shrink small outline package (SOT505-2); 8 leads; body width 3 mm; lead length 0.5 mm; pin 1 index located on lower left corner below marking code 'T25'.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 (1OE, 2OE) | Active-low output enable | Drives respective output into high-Z when HIGH; enables buffer pass-through when LOW. |
| 2, 5 (1A, 2A) | Data input | TTL-compatible input accepting 0.8 V/2.0 V thresholds; includes internal clamp diodes. |
| 3, 6 (2Y, 1Y) | Data output | CMOS push-pull output capable of sourcing/sinking ±6 mA with rail-aligned VOH/VOL. |
| 4 | GND | Reference ground node for all I/O and supply return paths. |
| 8 | VCC | Main supply rail (4.5–5.5 V); powers both buffers and internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V, VIL ≤ 0.8 V at 5 V supply - enables direct connection to legacy 74LS/74ALS families without level shifters. |
| Clamp diode protection | Integrated input diodes to VCC/GND - allows safe interface to signals up to VCC + 0.5 V using external current-limiting resistors. |
| Low dynamic power | CPD = 11 pF (enabled), 1 pF (disabled) - reduces switching power by >90% during bus idle states. |
| High noise immunity | Typical noise margin > 0.8 V (VCC = 5 V) - maintains logic integrity in electrically noisy industrial enclosures. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events. |
Applications
| Industrial Bus Arbitration | Legacy System Interface |
|---|---|
|
Use Scenario: Bidirectional data exchange across shared RS-485 or CAN transceiver control lines in PLC backplanes. IC Role / Device Role / Timing Role: Isolates microcontroller GPIOs from bus contention using independent 3-state control per channel. Use Value: Enables deterministic bus ownership handoff with < 38 ns enable/disable latency and < ±10 μA off-state leakage. |
Use Scenario: Interfacing 8051-based controllers with 74LS244-driven peripheral address/data buses. IC Role / Device Role / Timing Role: Translates TTL output levels to CMOS-compatible inputs while providing bus isolation. Use Value: Eliminates need for discrete resistor networks via native TTL input thresholds and integrated clamp diodes. |
| Automotive Sensor Hub | Test Equipment Signal Routing |
|
Use Scenario: Multiplexing analog sensor signals (e.g., thermistors, potentiometers) into ADC inputs in engine control units. IC Role / Device Role / Timing Role: Provides digitally controlled analog signal gating with minimal crosstalk and leakage. Use Value: Maintains signal fidelity with < 1.5 pF output capacitance and < 0.4 V VOL at 6 mA sink current. |
Use Scenario: Reconfigurable signal path selection in automated test equipment (ATE) front-end modules. IC Role / Device Role / Timing Role: Acts as programmable signal gate enabling/disabling test stimulus delivery to DUT pins. Use Value: Supports rapid test sequence changes via < 31 ns disable time and guaranteed high-Z isolation (>100 MΩ). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G125DPWR | Lower VCC range (1.65–5.5 V); CMOS inputs only; 3.3 V optimized; 3.5 ns faster propagation at 3.3 V. | Better suited for mixed-voltage 3.3 V/5 V systems but lacks TTL input compatibility. | Select when interfacing with 3.3 V FPGAs or microcontrollers and no legacy TTL devices are present. |
| 74AHC2G125DP,125 | Wider VCC range (2.0–5.5 V); higher speed (8 ns typ @ 5 V); CMOS inputs only; slightly higher ICC. | Superior timing performance but requires level-shifting for TTL sources. | Choose for maximum speed in pure CMOS environments where input voltage compatibility is not constrained. |
Compared with SN74LVC2G125DPWR and 74AHC2G125DP,125, the 74HCT2G125DP,125 uniquely balances TTL input compatibility, 5 V robustness, and industrial temperature range - making it optimal for brownfield system upgrades and mixed-logic industrial controls.
Availability
74HCT2G125DP,125 is available at Aetrix Electronics and suitable for industrial bus arbitration, legacy system interface, automotive sensor hub, and test equipment signal routing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT2G125DP,125 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The 74HCT series targets industrial and automotive applications demanding TTL-compatible interfacing, extended temperature operation, and robust ESD/latch-up immunity - designed specifically for system integration in harsh environments.
FAQ
What is the maximum clock frequency supported by the 74HCT2G125DP,125?
The device does not operate as a clocked element but as a combinatorial buffer. Its usable data rate is determined by propagation delay and load: with 12 ns typical tPD (VCC = 5.0 V, CL = 15 pF), it supports reliable data transfer up to ~25 MHz in point-to-point configurations. For bus applications, timing margins must account for enable/disable latency and trace impedance.
Can the 74HCT2G125DP,125 drive a 50 pF capacitive load at full speed?
Yes - the datasheet specifies dynamic characteristics (tpd, ten, tdis) with CL = 50 pF. At VCC = 4.5 V, tPD is 15 ns (max), ten is 35 ns (max), and tdis is 31 ns (max), confirming full-speed operation into 50 pF loads. Output drive strength (±6 mA) ensures adequate slew rate under this condition.
Is the 74HCT2G125DP,125 pin-compatible with the 74HC2G125DP,125?
Yes - both share identical TSSOP8 (SOT505-2) pinout and footprint. However, the 74HC variant uses CMOS input thresholds (VIH = 3.15 V min at VCC = 4.5 V), whereas the 74HCT variant uses TTL thresholds (VIH = 2.0 V min), making them electrically incompatible without redesign of upstream drivers.
Does the 74HCT2G125DP,125 require external pull-up or pull-down resistors on OE pins?
No - OE pins are active-low CMOS inputs with ±1.0 μA leakage and defined VIH/VIL thresholds. When driven directly by MCU GPIOs or logic gates, no external biasing is needed. However, if left floating, they default to HIGH (outputs disabled); intentional use requires explicit LOW assertion via controller or switch.
74HCT2G125DP,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 6mA, 6mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
74HCT2G125DP,125 FAQ
1.How can I place an order for 74HCT2G125DP,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT2G125DP,125 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74HCT2G125DP,125 reliable?
The price and inventory of 74HCT2G125DP,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT2G125DP,125 is usually 5 days.
3.What payment methods are accepted for 74HCT2G125DP,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT2G125DP,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT2G125DP,125?
74HCT2G125DP,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT2G125DP,125 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74HCT2G125DP,125?
For technical support, including 74HCT2G125DP,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT2G125DP,125 requirements.
6.How does Aetrix verify that 74HCT2G125DP,125 is sourced from the original manufacturer or authorized distributors?
All 74HCT2G125DP,125 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74HCT2G125DP,125 meets industry standards.
7.What is the process for return or replacement of 74HCT2G125DP,125?
All 74HCT2G125DP,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT2G125DP,125, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74HCT2G125DP,125 part is unused and in its original packaging.
Return procedure for 74HCT2G125DP,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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